Mandrel for sound recording or reproducing machines.



F. 0. HINCKLEY. MANDREL FOR SOUND RECORDING 0R REPRQDUCING MACHINES.

APPLICATION FILED FEB. 20. I917.

Patented Jan. 14, 1919.

F. C. HINCKLEY. MANDREL FOR sauuo RECORDING OR REPRODUCING MACHINES. I

APPLICATION FILED FEB. 20. I9l7.

Patented Jan. 14,1919.

2 SHEETSSHEET 2- IIIIIII iILIIF'PI I mm AW bm l/VVEA/ TOR A TTORNEVJ UNITED STATES PATENT OFFICE.

R M FRANK C. HINCKLEY, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO'AMERICAN GRAPHOIPHONE COMPANY F BRIDGEPORT, CONNECTICUT, A. CORPORATION OF WEST VIRGINIA.

IIMEANII'JIRJEHI: FOR SOUND RECORDIN G OR REPRODUCING MACHINES.

- f To all whom it may concern illustration only and are not to be construed Be it known that I, FRANK C. HiNCKLEY, a citizen of the United States of America, and a resident of Bridgeport, Connecticut, have invented a new and useful Improve ment in Mandrels for Sound Recording or Reproducing Machines, which invention is fully set forth in the following specification.

This invention relates to sound-recording and reproducing machines, and more particularly to the sound-record tablet support and its associated elements.

It is an object of this invention to provide a mandrel for a cylindrical sound-record with eflicient and easily operated means for locking the record-tablet upon the mandrel.

It is a further object of this invention to provide, in combination with a mandrel for cylindrical sound-records, means for ejecting the record-tablet therefrom, means for locking the tablet upon the mandrel, and a common actuating means for withdrawing the record-locking means and operating the record-ejecting means.

Other-objects will appear as the description of the invention proceeds.

- Stated briefly, the invention comprises the combination in a sound-recordinor reproducing machine with a mandrel or a cylindrical sound-record of means, preferably in the form of a latch, for locking the recordtablet upon the mandrel and a manuallyoperable device, movably mounted and operatively connected with the latch, for moving the latter into and out of record-engaging position. Also associated with the mandrel, by preference, is a record-ejecting means,

preferably actuated by the backward rotation of the mandrel, in which event the manually-operable actuating device for withdrawing the record-locking means is so related to the record-ejecting means that said device constitutes a common actuating device for both the record-ejecting means and the record-locking means.

The invention is capable of receiving a' variety, of mechanical expressions, one of which is shown in the accompanyin drawings; but it is to be expressly un erstood that such drawings are for the purpose of Specification of Letters Patent.

Patented Jan. 14, 1919.

Application filed February 20, 1917. Serial No. 149,886.

as a definition of the limits of the invention, reference being had to the appended claims for that purpose.

In saiddrawings:

Figure 1 is an end elevation of a soundrecording or reproducing machine embodying the present invention;

Fig. 2 is a fragmentary end elevation of the opposite end of said machine, with certain cover plates removed for clearness of illustration; Y

Fig. 3 is a longitudinal sectional view through the mandrel and its associated parts, but illustrating for convenience but a pair of diametrically disposed ejecting lugs;

Fig. 4 is a perspective of the record-ejecting device, with the elements thereof in separated relationship; and v Fig. 5 is a vertical. sectional view on the line 5.5 of Fig. 3:

Referring in detail to the drawings,'

wherein the same reference numerals indirate corresponding partsin the several figures, 1 designates the frame of a soundrecording or reproducing machine of any preferred construction, that illustrated on the drawings being of the type shown in my application SerialNo. 156,044, filed Mar. 20, 1917. As here shown, said frame lis in the form of a relatively'small base 2 provided with supporting posts 3 andhaving at opposite ends thereof standards 4 and 5. Supported by said standards is one or more guides 6, such guide or guides desirably being made hollow and containing a feedscrew or feed screws 6 as illustrated in Fig. 3. Supported to travel upon said guides 6 is a recorder or reproducer frame 7 provided with a suitable sound-box 8 and sound-conduit connections 9. Also mounted upon the frame 1 is a suitable motor 10, such for exwheels. Said but, wheels, and the belttightener when employed, are desirably in-' closed within a housing 17 provided, as

' shown, with a detachable cover plate 18.

stricted to use in anyparticular to of machine but is susceptible of use wherever a mandrel for a cylindrical souncl-record v o 28. Said mandrel is. preferably of the'usual employed.

Referring particularly to Fig.3, 4 and 5,

mandrel shaft His shown as having bear.

ing within an elongated boss 23 projecting from one face of the standard 5., the bearings being indicated diagrammatically at 24 and 25. Mounted upon the projecting end of said mandrel shaft 14 to rotate therewith. is the hub 26 of a. mandrel 27 "for supporting androtating a cylindrical recordtablet tapered construction. to conform with. the

usual tapered bore of a cylindrical recordtablet. If desired, the bearing of the mandrel shaftld maybe automatically lubricated by a suitable oiling device as shown at 29, illustrated as provided with a springpressed depressible plug 30 in the outer end w of the mandrel.

Mountedfor rotation uponthe outermost end of mandrel shaft 1-1 is a manually operable device in the form of a knob or handwheel 31 which may desirably be knurled to facilitate manual'operation of the same. Said lmob or-hand-wheel 31 is also desirably mounted forv longitudinal movement upon the end of said mandrel shaft 14, in which event it is preferably provided for a portion of its length with an enlarged bore as shown at 32. Between the shoulder 33 formed by one end of said enlarged bore and a Washer 34*. suitably secured on the end of the shaft 14, is positioned a spring 35 normally urging said knob or hand-wheel 31 in the direction of the mandrel; Said knob or hand-wheel 31 is furthermore provided with one or more cars 36 to which is loosely pivoted, as by a pin and slot-connection 37,

one end of a latch 37 provided at its opposite end with an inwardly directed nose 38.

Said latch 37 is pivotally mounted upon the mandrel and, by preference, has longitudinal' movement toward and from the end of saidl mandrel. As shown, said-mandrel is provided with an elongated bushing 39 within which is a pin 40' extending beyond the end of the mandrel and engaging within an meters.

aperture 41in said .latch 37, The end of the pin is preferably headed over, as illustrated at i2, to prevent. disengagement of i said pin and saidlatch.

Associated with the mandrel 27, by preference, is a record-ejecting device, that illustrated being similar in certain respects to longitudinally in one or more slots d4! pro- As a stop vi'ded-therefor in the mandrel. for said lugs, said mandrel may desirably carry an end ring 45. Sleeve 43 at its opposite end is provided with an inwardly direct ed flange 46 adapted to coact with one-or nore rollers 47. Mounted on boss 23 is a collar 49 fixed in relation-to said boss as by a set screw 50. Said collar 49 is pro-' vided at its inner edge with one ormore notches 51-, there being as many notches as there are rollers.

'53 at its opposite side. To normally urge sle'e ve 4:3;in a direction to maintain rollers 47 in the'bottoms of the notches 51, one or more spring-pressed pins 54: are carried by'bosses 55, projectingfrom the interior of the mandrel and desirably integral therewith, and engage the outer face of the inwardly directed flange d6.

lln operation, assuming the parts to be in the relative positions shown in the drawings.

drawn longitudinally outward upon the end or mandrel shaft 14., carrying therewith latch 37 owing'to-the reciprocatory move ment providedfor pivot pin 40, whereby nose 38 is withdrawn from engagement with the. sound-record tablet. Knob 31 is thereupon rotated in the direction of arrow 57- lEach notch, as. shown, is provided with an abrupt shoulder 52 at one side and with: a gradually inclined surface shown in Fig. 3. Rotation of said knob causes a pivotal movement of latch 37 about the axis determined by pivot pin 40 until nose 38 is withdrawn within the peripheryv of the end or mandrel 27 the requisite play between. the ears. 36 and .said latch being provided by the pin and slot connection 37 therebetween. en the latch has assumed the last-named position, further pivotal movement thereof is prevented by engagement of the pin with the end of the slot at 37, and further rotation of knob 81 in the last-named direction is thereupon transmitted through pivot pin 40 to the mandrel 27, giving said mandrel a backward rotation. As the mandrel rotates backwardly, sleeve 43, rotating therewith, is forced inwardly against the tension of the spring-pressed pins 54 as the rollers 47 are forced to roll up the inclined sides of notches 51. Thereby the radial lugs 44 are forced into engagement with the end of the sound-record tablet and the same is loosened from the mandrel and ejected to a position where it may be readily grasped by the hand. Furtherrotation of the mandrel in the backward direcforces said knob, together with the latch,

. longitudinally of the mandrel until nose 38 engages the record-tablet and securely locks the same in position. H v

While the illustrated embodiment has been described with considerable particularity, it is to be expressly understood that the invention is not to be restricted to the precise form shown, but is susceptible of receiving a variety of embodiments, some of which will readily suggest themselves to those skilled in the art; furthermore, certain features thereof are capable of use without.

other features thereof; reference is therefore to be had, for a definition of the limits of said invention, to the claimshereto appended, wherein the term talking machine is to be construed as of a scope to include either sound-recording or sound-reproducing machines. I

2 What is claimed is 1. The combination in altalking machine ---of a mandrel for a cylindrical sound-record,

means for locking the record on said mandrel, and a single means for releasing the.

record and ejecting the same.

2. The combinatlon in a talking machine of a mandrel for a cylindrical sound-record, a latch for engaging a record on the mandrel to prevent accidental removal therefrom, and a single means for withdrawing said .latch and ejecting the record.

3. The combination in a talking machine of a mandrel for a cylindrical sound-record,

means for-locking the record. on saidmandrel, means for ejectmg'the record from said mandrel, and a common operating means' drel to prevent accidental removal therefrom, means 'for ejecting the record from.

said mandrel, and a common actuating means for withdrawing said latch and operating said ejecting means.

5. The combination in a talking machine of a mandrel for a cylindrical sound-record, a latch at one end of the man'drel for engaging a record thereon to prevent accidental removal therefrom, a manually rotatable device at one end of the mandrel, means operable by said device for withdrawing the latch, and means ogerable by said device for ejecting the recor 6. The combination in a talking machine of a mandrel for a cylindrical sound-record. a latch at one end of-the mandrel for engaging a record thereon to prevent accidental removal therefrom, an axially-movable and rotatable device at one end of the mandrel, means operable by said device for.

withdrawing the latch, and means operable by said devlce for ejecting the record.

. 7. The combination in a talking machlne of a mandrel for a.cylindrical Sound-record,

9. The combination'in a talking machine of a mandrel for a cylindricalsound-record,

a latch at one end of the mandrel for engaging. a record thereon to prevent accidental removal therefrom, a manually operable device at one end ofthe mandrel, mechanism for ejecting the record, a connection between said device and sald latch for moving the latch axiallv'out of engagement with the record and then inward outof register therewith, and a connectionbetween sald device and said ejecting mechanism for oper-' ating the latter.

10. The combination in a 'talklng machlne of a mandrel for a cylindrical sound-record,

a latch at one end of the mandrel for engagin a record thereon to prevent accidenta removal therefrom,;a manually operable device at one end of the mandrel mov- 15.-'The-comhination in'a amn -a n 11. The combination a talhng machine [of a mandrel for a cylindrical sound-record,

a shaft for the mandrel, a manually operable knob rotatable on the end of the shaft ad- '15 jacent one endof the mandrel, a movable latch adapted to engagea record on the mandrel to prevent accidental removal therefrom, and means for moving the latch out of record engaging position as the knob is turned;

1% The combination ina talking machine of a mandrel for a cylindricalsound-record, a shaft for the mandrel, amanually operable" knob rotatable on the end ofthe shaft fad jaoent one end of the mandrel, a movable latch adapted to engage a record on the man drel to prevent accidental removal there from, an e ector mechanism operable by thebackward rotation of the mandrel,- and means so for moving-the latch out of record engagingposition as the knob iS turned and for t ans w.

' mitting the turning motion of the knob to the mandrel to rotate the latter backwardly." '13. The combination in a talking machine e5 of a mandrel for aeylindrical sound-record,-

, I ashaft'for themandrel,a'manuallyo' erable {knob rotatable and longitudinally s 'dabl'e a on thefend of the shaft adjacent one end off the mandrel, a mo'va'blelatch adapted to en,-

e0 gage a reoordon the mandrelto prevent hCCl-r dentalremoval therefrom, the latch-brain movable longitudinally-with the knob an 1 also movable inward relatively to the lmob,

' ,and means for moving the latch inward out of record-engaging position 'asltlie.

' 1 h Thecombination in a talking mdchine of a mandrel for a cylindrical sound-record;

dre lv on which Isaidlatch is mounted to move anaemic a shaft for the mandrel, a manually operable lmob rotatable on the end ofthe shaft adjacent one v end of the mandrel," a movable Jlatchconnected with the hob and adapted to engage a record on the mandrel to prevent accidental removal therefrom,and a pin on the mandrel on which said latch is mounted to move inward out of record-engaging posh tion as the knob is turned.

. 16. The combination in a talking machine '75 of a mandrel for acylindrical sound-record,-

a shaft for the mandrel, a manually operable knob rotatable on the end of the shaft ad- -jacent one end of the mandrel, a movable "latch. connected with the knob and adapted: so toengage a record on the mandrel to prevent accidental removal therefrom, an egector mechanism operable by the backward rotation of the mandrel, and a-pm on the maninwardout of record-engaging position as the blob is turned and through which the turning mononof'the knob is transmitted to; the mandrel to rotate the same backwardly.

E 17. The combination in a talking m'achine of a mandrel for a cylindrical sound-record, a shaft for the mandrel, a manually operable lmob' rotatable and longitudinally slidable on-the end of s'aid shaft adjacent one endof the mandrel, a movable latch connected wlth ea "theflmob-andada'pted to engage arecord on the mandrel to prevent accidental removal ';'therefrom and a pin on the mandrel on which Said v:lateh is mounted to move longi tud l e lywith the hob and also inward out we ofnecord-eng'agingpositionas the 'knob 1s turned; r 18. The combination in a talking machine ofa-mandrel for' a cylindrical eound-record,

..-3g-I-sha,ft for the mandrehwan ejector mech-' me anism operable .by-the backward rotation of the mandrel, a manually operable hob .ro- 'tatable5'd longitn'dinally slldable on the Fender sent shaft adjacent one end of the I mandrehl'amovable Iatch connected with the l to d adapted te engage a record on the to prevent accidental removal thereand'a'.pin on the mandrel on which I v a'shaft' for the mandrel, a manually o erablje said latch'isjmounted; to move longitudinally 50 knob rotatable ilongitudinally s able I on the end of the shaft adjacent oneendof the, mandrel, amovable latch adapted to engage a record'onthe mandrel to prevent acci each-a mandreljfor a cylindrical sound-moat "f 'w'ith'the' knob" and also inward out of recordare engagingpositirm as the knob is turned and through which the turning motion of the web is transmitted to'the mandrel to rotate heea nae-backvvandly;'- v

l fl'llhe combination in a talking machine 112d not a mandrelfor a cylindrical sound-record, a'shatt for; the mandrel, a manually operable knob rotatable and longitudinally 'slidable on the end of the shaft adjacent. one end of "gagea record on the mandrel to prevent ac- ;cide'ntal' removal therefrom, the latch being movable longitudinally withv the knob and also movable inward relatively to the knob,

meansior moving the latch inward out of 13a)- I the mandrel, a movable latch adaptedto enare record-engaging position as the knob is turned, and means normally urging said knob and latch longitudinally toward the mandrel.

20. The combination in a talking machine of a mandrel for a cylindrical sound-record, a latch pivoted on the mandrel and adapted to engage a record thereon to prevent accidental I removal therefrom, and rotatable means connected with said latch to move the same into and out of record-engaging position'.

21. The combination in a talking machine of a mandrel for a cylindrical sound-record, a pivoted and axially-movable latch'mounted on the mandrel and adapted to engage a record thereon to prevent accidental removal 'ing position.

therefrom, and, rotatable and axially-mova'ble means connected with said. latch to move the same into and out of record-engag- 22. The combination in a talking machine of a mandrel for a cylindrical sound-record,

a pivoted and axially-movable latch mounted on the mandrel and adapted to engage a record thereon to prevent accidental |removal therefrom, rotatable and axiallymovable meansconnected with said latch to move the same into and out of record-engag'- ing position, and means normally urging 'sald latch axially toward the mandrel.

23. The combination in ,a talking machine of a mandrel for a cylindrical sound-record, a shaft for the mandrel,,a' latch pivoted on the mandrel and adapted to engage a record thereon to prevent accidental removal therefrom, and an arm rotatable on said shaft and connected with said latch to move the same into and out of record-engaging po-' sition. i

24. The combination of a mandrel for a cylindrical sound-record, record-engaging means, means for moving said record-engag-- ing means axially of the mandrel to eject the record, means to lock the record on the mandrel, and a common operating means for said record-locking and record-ejecting 6 means.

25. The combination of a mandrel for a cylindrical sound-record, recordengaging means, cam means operable by the backward rotation of the mandrel for moving said record-engagingmeans axially of the mandrel to eject the record, means to lock the record on the mandrel, and a common opof'a mandrel for a cylindrical sound-record,'

means for ejecting the record from said mandrel operable by the backward rotation ,erating means for withdrawing said recordof said mandrel, means for locking therecord on said mandrel, and asingle means for operating -said record-locking means and for rotating said mandrel backwardly. I

28. The combination in a talking machine of a mandrel for a cylindrical sound-record, means for ejecting the record from said .mandrel operable by the backward rotation of said mandrel, means for locking the .record on said mandrel, and a single means operable to first release saidrecord-locking means and to thereafter rotate said mandrel backwardly.

I 29. The combination in a talkingmachine of a mandrel for a cylindrical sound-record and a latch pivoted on said mandrel and. adapted to engage a record'thereon to prevent accidental removal therefrom. 30. The combination in a' talking machine of a mandrel for a cylindrical sound-record and a latch adapted to engage a record on the mandrel to prevent accidental removal therefrom.

In testimony whereof I have signed this specification. 1, V

v FRANK O. HINCKLEY 

